Found 2 items, similar to ambient.
English → English (WordNet)
Definition: ambient
ambient
adj : completely enveloping; 
“the ambient air”; 
“ambient sound”;
“the ambient temperature”
English → English (gcide)
Definition: Ambient
Ambient 
\Am"bi*ent\, a. [L. ambiens, p. pr. of ambire to go
around; amb- + ire to go.]
Encompassing on all sides; circumfused; investing. 
“Ambient
air.” --Milton. 
“Ambient clouds.” --Pope.
[1913 Webster]
Ambient 
\Am"bi*ent\, n.
Something that surrounds or invests; as, air . . . being a
perpetual ambient. --Sir H. Wotton.
[1913 Webster]